Magnetic phase diagram of the quantum spin chain compound SrCo${}_2$V${}_2$O${}_8$: a single-crystal neutron diffraction study in magnetic field

Abstract

We explore the spin states in the quantum spin chain compound SrCo${}_2$V${}_2$O${}_8$ up to 14.9 T and down to 50 mK, using single-crystal neutron diffraction. Upon cooling in zero-field, antiferromagnetic (AFM) order of Néel type develops at $T_{\mathrm{N}}$ $\simeq$ 5.0 K. Applying an external magnetic field ($H$ $\parallel$ $c$-axis) destabilizes the Néel order, leading to an order-disorder transition when applying a field between $T_{\mathrm{N}}$ and $\sim$ 1.5 K. Below 1.5 K, we observe a Néel to longitudinal spin density wave (LSDW) order transition at 3.9 T, and a LSDW to emergent AFM order transition at 7.0 T. Our results also reveal several unique signatures for the states of the spins that are not present in the isostructural counterpart BaCo${}_2$V${}_2$O${}_8$.

9 pages, 9 figures. Accepted manuscript

References in corpus (12)

• Bose-Einstein Condensation in Magnetic Insulators
• Experimental Observation of Bethe Strings
• Topological quantum phase transition in the Ising-like antiferromagnetic spin chain BaCo${}_2$V${}_2$O${}_8$
• Spinon confinement in a quasi one dimensional anisotropic Heisenberg magnet
• Novel ordering of an S = 1/2 quasi one-dimensional Ising-like anitiferromagnet in magnetic field
• Longitudinal SDW order in a quasi-1D Ising-like quantum antiferromagnet
• Magnetic correlations of the quasi-one-dimensional half-integer spin-chain antiferromagnets Sr$M_2$V${}_2$O${}_8$ ($M$ = Co, Mn)
• Field-induced incommensurate order for the quasi-one-dimensional XXZ model in a magnetic field
• From confined spinons to emergent fermions: Observation of elementary magnetic excitations in a transverse-field Ising chain
• Giant magnetic-field dependence of the coupling between spin Tomonaga-Luttinger liquids in BaCo2V2O8
• Substitution effects on the temperature vs. magnetic-field phase diagrams of the quasi-1D effective Ising spin-1/2 chain system BaCo${}_2$V${}_2$O${}_8$
• Neutron diffraction investigation of the H-T phase diagram above the longitudinal incommensurate phase of BaCo2V2O8

Cited by in corpus (8)

• Quantum criticality of the Ising-like screw chain antiferromagnet SrCo2V2O8 in a transverse magnetic field
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• Phase diagram and quantum criticality of Heisenberg spin chains with Ising-like interchain couplings -- Implication to YbAlO${}_3$
• Low-energy spin dynamics in rare-earth perovskite oxides
• Zigzag materials: selective interchain couplings control the coexistence of one-dimensional physics and deviations from it
• Field-induced antiferromagnetism and Tomonaga-Luttinger liquid behavior in the quasi-one-dimensional Ising-Antiferromagnet SrCo2V2O8
• Inhomogeneous spin excitations in weakly coupled spin-1/2 chains
• Ising spin-1/2 XXZ chain's quantum problems beyond the spinon paradigm